fix: 修复配额说明重复和undefined问题

- 在editStorageForm中初始化oss_storage_quota_value和oss_quota_unit
- 删除重复的旧配额说明块，保留新的当前配额设置显示

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/node_modules/better-sqlite3/lib/methods/function.js

@@ -0,0 +1,31 @@
+'use strict';
+const { getBooleanOption, cppdb } = require('../util');
+
+module.exports = function defineFunction(name, options, fn) {
+	// Apply defaults
+	if (options == null) options = {};
+	if (typeof options === 'function') { fn = options; options = {}; }
+
+	// Validate arguments
+	if (typeof name !== 'string') throw new TypeError('Expected first argument to be a string');
+	if (typeof fn !== 'function') throw new TypeError('Expected last argument to be a function');
+	if (typeof options !== 'object') throw new TypeError('Expected second argument to be an options object');
+	if (!name) throw new TypeError('User-defined function name cannot be an empty string');
+
+	// Interpret options
+	const safeIntegers = 'safeIntegers' in options ? +getBooleanOption(options, 'safeIntegers') : 2;
+	const deterministic = getBooleanOption(options, 'deterministic');
+	const directOnly = getBooleanOption(options, 'directOnly');
+	const varargs = getBooleanOption(options, 'varargs');
+	let argCount = -1;
+
+	// Determine argument count
+	if (!varargs) {
+		argCount = fn.length;
+		if (!Number.isInteger(argCount) || argCount < 0) throw new TypeError('Expected function.length to be a positive integer');
+		if (argCount > 100) throw new RangeError('User-defined functions cannot have more than 100 arguments');
+	}
+
+	this[cppdb].function(fn, name, argCount, safeIntegers, deterministic, directOnly);
+	return this;
+};